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J. F.-AYRES.

I FLOUR BOLT. No. 310,772. Patented Jan. 13, 1885. F agl JC 1 V J-[ I J 5. 1?)

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J.P.AYRES.

FLOUR BOLT. No. 310,772. Patented Jan. 13, 1885.

III! IV iUNlTED States PATENT firmer...

JOHN F. AYRES, OF ALLQXVAY, NE? JERSEY.

FLOUR-EOLT.

.aPECIPICATION forming part of Letters Patent No. 310,772, dated January 13, 1865.

Application filed April 25, 1884.

To all whom it may concern.-

Be it known that I, JOHN F. AYRES, a citizen of the United States, residing at Alloway, in the county of Salem and State of New J ersey, have invented certain new and useful Improvements in Flour-Bolts; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to bolts and to that class of said inventions commonly known as rotary bolts.

It consists in thenovel construction and combination hereinafter described and claimed.

In the drawings, Figure 1 is a plan, and Fig. 2 a side elevation, of my machine. Fig. 8 is a detail view showing the discharging mechanism. Fig. 4 is a detached section in line 3 3 Fig. 3. Fig. 5 is adetail view of the bolt-shaft, broken part in section to better illustrate the novel features thereof presently.

The bolt A is adapted at its end A to receive the middlings, and is so formed as to feed same toward its opposite end as it revolves. This may be accomplished by forming the bolt with an increasing diameter toward its lower end, as shown, or by inclining said bolt, both of which forms are commonin the art. In practice I cover. this bolt with screen-cloth having a mesh gradually increasing from end to end, so that the stuff bolted by different portions of said bolt will vary in fineness. The receiving or feed end of the bolt is provided with a head-block, B, through which the spindle of the bolt-shaft turns, the said block being secured rigidly to the framing of the machine. A feed-pipe, 1), extends from this block into the bolt and serves as a means for feeding the middlings thereinto. A hood, a, is secured with receiving end of the bolt, and has a flange, a, extending inward beyond the periphery of the head-block, so as to practically inclose said block within the bolt. The pipe or tube b may be extended upward beyond the head-block and connected with a hopper or the middlings may be otherwise fed thereinto, as desired. The boltis arranged in the bolting-chest D, the bottom of which is (No model.)

provided with discharge-spouts d,arranged in a series extending the full length of the said chamber and of the bolt. The receiver or box E isdivided by a central partition, 6, into two troughs, 6 6 as clearly shown, both of which are arranged, under certain circumstances, presently described, to receive the stuffs from the spouts d d d d d d d, the division 6 be ing arranged midway of each of said spouts, as most clearly shown in Fig. 3. These spouts may be varied in number to suit the maker. It will be seen that the stuff discharged through spout d will be of a diiferent grade from that discharged through spout (Z and so of any other two spouts of the series.

It is desirable to distinctly separate the middlingsdischarge at the various points of the bolt. I do this by discharging the spoutsd into different troughs. A convenient way of doing,

this is to throw the discharge of the adjacent spoutssay d d into the opposite troughs e 6 and that of the alternate spoutssay (Voltinto the same spout, the intervening space occasioned by throwing the intermediate spout into the other trough serving to distinctly mark the line between the several heaps in each trough. This may be done in several ways. The trough may be permanently fixed to so operate; but I prefer to so construct the device that the discharge of any of the spouts may be thrown at will into either of the troughs. This may be accomplished by the construction shown in Figs. 3 and 4, in which is shown a board, F, pivoted at its lower edge, F, centrally below the spout and above the partition 0 of the receiver E. The upper edge of this board is adjustable against either side of the spout, so as to effectually discharge the middlings passed through said spout in either one desired of the troughs. I provide these boards with plates f on their opposite ends, arranged to operate on opposite sides of the dischargeopenings, as clearly shown in Fig. 5.

Difficulty is experienced in rotary bolt by reason of the bolt not running true, owing to some unequal wear or other disarrangement of the gudgeons or spindle. To obviate this, I form the gudgeon H separate from the shaft I, and have its shank or tang inserted in a suitable socket, 2', formed from the end of the shaft.- A mortise, t, intersects the socket fat the inner end of the latter and serves to per- ICO , mit the operation of the retaining-nut h,

screwed on the rear end of the gudgeon, as clearly shown in Fig. 6. The outer end of the socket is made to fit the gudgeon, while its inner end is larger than the corresponding end thereof. This may be accomplished by tapering the gudgeon downward to its inner end, or by increasing the diameter of the socket 4. toward said end, and would give the same result in either case. The inner end of the gudgeon will be seen to be movable. New, by moving or adjusting this end of the gudgeon and securing it at the desired points its outer or movable end will be turned up. Set-screws J are turned through the sl1aft,and their points bear against the inner end of the gudgeon. I usually employ four of these screws. By turning these the gudgeons may be readily adj usted and trued up, as will be obvious.

It is frequently desirable to couple together the shafts of two or more bolts, and sometimes to form the shaft of the bolts in sections coupled together, this'latter for the purpose of enabling the adjustment of the gudgeon, as before described. To effect this, I provide the gudgeon with an angular stem, 7;, fitted to enter the central opening, K, of the thimble K, which is provided with a flange or flanges IQ, fitted to extend over the adjoining shaft or section, and to be secured thereto by means of a bolt or bolts, K or in other suitable manner desired. By this construction the sections or shafts may be quickly coupled or uncoupled, as desired.

It is manifest that where so desired the in tersecting mortise t" and retaining-nut it may be dispensed with, and the gudgeon be retained in the socket by other means, for instance, by forming in it an annular groove and fitting the end plate, i of the shaft thereto; but I p'refer the construction as shown and before described.

Having described my invention,what I claim, and desire to secure by Letters Patent, is 1. The combinatiomwith the series of spouts d (P, &c., and the two troughs arranged below and on opposite sides thereof, of the switches or shunts composed of plates f, arranged at the ends of the spouts d 0?, 850., and the boards F,pivotally supported at their lower edges, p

and having their upper edges projected into the said spouts and adjustable from side to side thereof, substantially as set forth.

2. In a rotating bolt, the combination of the shaft I, provided with a socket, i, the gudgeon having its shank seated and movable in said socket, and the adj Listing-screws, substantially as set forth.

3. The combination of the rotary bolt havin g its shaft I, provided with end socket, t, and intersecting mortise i, the gudgeon havingits shank seated in said socket, the retaining-nut 72 and the screws J, all substantially as and for the purposes set forth.

In testimony whereof I affix my signature in presence of two witnesses.

' JOHN F. AYRES.

Witnesses:

R. O. MILLER, 1%. B. S. DIAMENT. 

